Sklarew, A. (1980). Techniques of a professional commodity chad analyst. Commodity Research Bureau.
Dyfyniad Arddull ChicagoSklarew, Arthur. Techniques of a Professional Commodity Chad Analyst. New York: Commodity Research Bureau, 1980.
Dyfyniad MLASklarew, Arthur. Techniques of a Professional Commodity Chad Analyst. Commodity Research Bureau, 1980.
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